Spark-arrester and smoke-preventing device for locomotives.



P. H. COLE. SPARK ARRESTER AND SMOKE PREVENTING DEVICE FOR LOCOMOTIVES.

APPLICATION FILED JAN. 4, 1911.

Patented Sept. 5, 1911.

2 SHEETS-SHEET 1.

iv VENTOR, Frank 15. 6' 0 Z 6,

A TTORNEYS WITNESSES- I I. H. COLE. SPARK ARRESTER AND SMOKE PREVENTINGDEVICE FOR LOCOMOTIVES.

APPLICATION FILED JAN. 4, 1911.

1,002,564. 1 Patented Sept. 5,1911.

2 SHEETSSHEBT 2.

C) Q I WITNESSES: INVENTOR,

. jfdfll' E 606 BY 7%. W W A TITORNEYS' FRANK H. COLE, 0F HOLYOKE,MASSACHUSETTS.

SPARK-ARRESTER AND SMOKE-PREVENTING DEVICE FOR LOCOMOTIVES.

To all whom it may concern:

Be it known that T, FRANK H. Conn, a citizen of the United States ofAmerica, residing at Holyoke, in the county of Hampden and State ofMassachusetts, have invented new and useful Improvements inSpark-Arresters and Smoke-Preventing Devices for Locomotives, of whichthe following is a specification.

This invention relates to improvements in spark arresters and smokepreventing devices as applied to locomotive boilers.

The object of the invention is to provide means for preventing the liveor hot cinders from escaping or flying out of the smokestack of alocomotive during its passage over the road-bed. It sometimes occursthat fires are started by reason of the hot cinders escaping from thestack and falling upon dry leaves or grass adjoining the track. Myobject, as stated, is to prevent their escape from the smoke-stack.

Broadly, the invention consists in providing the interior portion of thesmokestack with a series of annular deflecting members for turning theheavier sparks or cinders downward.

The invention further consists in means for conveying all of theproducts of com bustion back into the fire-box when the train is passingthrough a tunnel; also in providing means for increasing the downwarddraft when the products of combus-v tion are being led back and downinto the firebox.

The invention further consists in providing means for purifying theproducts of combustion so that they can be used again for assistipgcombustion in the fire-box and in providing means for preventing theescape of smoke from the smoke-stack.

The invention will be fully described in the bodyof the specificationwith reference to the drawings, and will be. specificall pointed out inthe claims.

In the drawings forming part of this application,-Figure 1 is alongitudinal sectional view through the boiler showing the fire-box,tubes, and the return-pipe from the smoke-stack back to the ash-pit.Fig. 2 is an enlar ed vertical sectional view through the axis of thesmoke-stack on the line 22 Fig. 1 looking in the direction of the arrow,showing the return passage which communicates with a pipe leading backto the ash-pit and illustrating the open Specification of LettersPatent.

Application filed January 4., 1911.

Patented nept. 5, 1911.

Serial No. 600,695.

' position of the parts in the smoke-stack.

Fig. 3 is a sectional View similar to Fig. 2, but showing the partsclosed in the smokestack, the section being taken'on line 3-3, Fig. 5.Fig. 4 is a horizontal, sectional view on the line 44, Fig. 8 lookingdownward. Fig. 5 is a top plan view of the smokestack.

Referring to the drawings in detail, a designates the conventionalwagon-top boiler having the usual fire-box Z) and tubes 0. The ash-pitis shown at d, the smokestack being designated as a whole at e. Theexhaust nozzles and petticoat pipe are indicated at f and grespectively.

Located within the smoke-stack e are a plurality of annular members 2',j, and k that are rigidly secured in place by means of the braces m, n,and 0. The brace n secures the annular member 7' to the member is which,in turn, is secured to the smokestack a by means of the brace 0. Thebrace m secures the annular member 2' to the cylindrical member h which,in turn, is secured to the smoke-box 7L The annular members aresubstantially funnel-shaped and are provided with downwardly taperedportions 7) and upwardly extending cylindrical portions 9 that areco-axial with the smokestack. Arranged below the downwardly taperedportions p and adapted to engage the lower edges of the same are aplurality of inverted cone-shaped members 1 which are secured to avertically movable rod 8, the upper end of which is guided by means of abrace-bar t attached to the lower inner portion of the member is, asshown, having a collar u thereon, its lower end resting upon a cam '12that is secured to the transversely arranged rock-shaft w that ismounted in the annular ring m which is secured to the smoke-box portion7& of the boiler. The outer end of this rock-shaft is provided with acrank-arm y to which a reach rod 2 is attached that leads back to thecab and is within easy reach of the engineer. 2 designates a pair ofcams that are also secured to the rock-shaft w and engage the lower edgeof the cylindrical sleeve 3, which. surrounds a cylindrical member hlocated over the opening k of the smoke-box h.

When the cone-shaped members r are dis engaged from the downwardlytapered portions 7), as shown in Fig. 2, the sleeve 3 projects above theupper edge 5 of the cylindrical member it. Each of the annular membersa, j, and k is provided with a downwardly curving channel 6 which is 10-catedon the under side and forms an upward continuation of thedownwardly tapered portions 3) adjacent the part g of the annular memberwhich is immediately below, the purpose 'of which is to cause the heavyparticles or 'cinders to be deflected downward into the annularpassage-way 7, asshown by the arrow 8. When the coneshaped members 1'engage the downwardly tapered portions p the cinders and smoke are alldeflected downward into the annular passage-way 7 which isinscommunication with a pipe or passage-way 9 extending forward from thesmoke-stack e and down around the front end of the smoke-box k and onthe opposite-sides of the same, to a pipe 10 which communicates with theashpit d by means of the opening 11. Located within the pipe 10 is aplpe 12 for the purpose of conveying water in spray form therethroughand whereby the gaseous products of combustion are purified and washedbefore being drawn into the ash-pit by means of the steam-jet shown at.12 when the locomotive is passing through a tunnel, or in cities wherethe smoke laws are in force. When the cone-shaped members 1- aredisengaged from the downwardly tapered portions p, as shown in Fig. 2,the

lighter particles, or the gaseous products of combustion, will passdlrectly upward through the smoke-stack to the atmosphere,

but the heavier particles, or those that are liable to cause fire, willbe thrown outward or fall downward through the passageways 13 into theannular passage-way 7, and from there will be carried backward into theash-pit d.

The cams 2 have rods 2 connected thereto which, in turn, are connectedto the lift ring e? which opens and closes the passages c at the upperend of the passage-way 7.

It will be noticed in Fig. 2 that when the rock-shaft w is operatedso asto lower the cone-shaped members 0, the sleeve 3 and ring a will beelevated by means of the cams 2, and when the cone-shaped members 1- areelevated, the sleeve 3 and ring e will bendepressed or lowered, thuswidening the passage-way between the downward y tapered portions (p ofthe annularmember i and the upper e go of the cylindrical part 4, asclearly shown in Fig. 3. Or, in other words, 'the sleeve 3 and thecone-shaped members 1- move in opposite directions.

The annular members i, j, are each provided with a circular or groovedchannel 14 which is adjacent the upwardly extending cylindrical part 9.Located over each of these channels is the outlet end of a pipe 15forconveying water thereto for the purpose of catching an fine particlesthat may be carried into t e space 7. The pipe 15,

therefore, affords means for washing and cleaning these channels. Thesleeve 3 is provided with ribs 3 for lessening friction and to preventsticking.

From the arrangement of the cams on the shaft w, the sleeve 3 and thecone-shaped members 1- balance each other when the rod 2 is operated.Thatis to say, when the sleeve 3 is moved upward the cone-shaped membersr are permitted to move downward by the cams 2. The weight of the sleeve3 is substantially the same as the members 1'.

In operation, considering the inverted cone-shaped members r in alowered position, that is, as shown in Fig. 2, the aseous products ofcombustion will escape irectly upward through the smoke-stack to theatmosphere, part going, however, through the openings 13 to the passage6 under the ring e The heavy cinders, as they strike the downwardlycurved channels 6, will be arrested or deflected downward into thepassage-way 7, and then carried into the pipe 10 where they may be blownto the ash-pit by means of the steam connection 16.

16 indicates a clean-out door. In this figure, the sleeve 3 is elevatedabove the upper end of the part it.

The inverted cone-shaped members 1- serve to deflect the heavy sparksthrough the openings 13 and the curves 6 deflect them into thepassage-way 9. The lighter particles and gases pass upward and out ofthe top of the smoke-stack.

WVhen the inverted cone-shaped members are elevated, as shown in Fig. 3,all of the passages to the top of the smoke-stack are closed and all ofthe products of combustion pass through the openings 13. The sleeve 3 isthen in its lowest position and the ring e has closed the opening 6 Nowthe products of combustion are drawn downward through the passages 9 tothe pipe 10 by means of the steam escaping from the pipe 12 and into theash-pit d. The gases are purified by means of the spray of water fromthe pipe 12 rendering the products of combustion in condition to supportcombustion when passed through the fire-box.

What I claim, is

1. In a spark-arresting and smoke-preventing device, the combinationwith the smoke-stack of a locomotive boiler, the interior portion ofwhich is provided with a cylindrical member located over the opening inthe smoke-box, of a rock-shaft extending transversely of the cylindricalmember, a cam thereon, an annular member located above the cylindricalmember having a downwardly tapering portion, and a sleeve adapted to beoperated by the cam to vary the opening between the cylindrical memberand the downwardly tapering portion of the annular member.

cam thereon, an annular member located,

above the cylindrical member having a downwardly tapering portion, and asleeve adapted to be operated by the cam to vary the opening between theannular member and the cylindrical member, a cone-shaped member operablefrom the rock-shaft to deflect the products of combustion into the spaceoutside the cylindrical member, and means for conveying the productsof'combustion back to the ashpit.

3. In a spark-arresting and smoke-pre-' venting device, the combinationwith the smoke-stack, of a plurality of annular members located in saidsmoke-stack and spaced from the inner surface thereof, said membershaving downwardly tapering'portions and upwardly projecting cylindricalportions, the portion of the annular members between the upper and lowerportions thereof being provided with annular grooves, the lower groovesbeing designed to cause the heavier particles to be thrown outwardly anddownwardly into the space between the annular members and the interiorof the smoke-stack, means for conveying the products' of combustion backto the ash-pit, and means for cleaning the annular grooves that areadjacent the cylindrical portion of the annular members. 1

4. In a spark-arrester and smoke-preventing device for locomotiveboilers, the combination with a smoke-stack, of a rockshaft locatedtransversely of the same, a cam ,on said rock-shaft, and a verticallymovable rod adapted to be operated by the cam on the rock-shaft, aplurality of'cone-shaped members secured to the vertically movable rod,the base portion of said cone-shaped members being upward, and aplurality of annular members having downwardly tapering portions adaptedto be engaged by the base portions of the cone-shaped members wherebythe products of combustion will be deflected or forced past the closedmeeting edges of the tapering portions of the annular members and thecone-shaped members to the space adjacent the inner surface of thesmoke-stack, means for conveying the products of combustion back to theash-pit, and means for purifying the same during their passage.

FRANK, H. COLE.

Witnesses R. I. (borrow,

HARRY W. BOWEN.

